(24835) 1995SM55
This object has a more recent orbit available here
Object
| Object | (24835) 1995SM55 |
| Diameter(1) | 701 km |
| Dynamic class(1) | Haumea |
| Absolute magnitude | 4.60 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458600.5 |
| Semi major axis | 41.594205 ± 0.001714 au |
| Eccentricity | 0.100271664 ± 0.000022127 |
| Inclination | 27.070788704 ± 0.000322055 ° |
| Longitude of ascending node | 21.067176 ± 0.000090 ° |
| Argument of perihelia | 71.831500 ± 0.011900 ° |
| Mean anomaly | 332.234470 ± 0.011191 ° |
| Orbital period | 268.26 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv7 |
| Observation file |
omc_ast_NIMAv7.txt |
| bsp file | 24835_1995SM55_nima_v7.bsp |
| Date of first observation | 1982-09-16 |
| Date of last observation | 2020-10-23 |
| Number of observations used in the fit | 287 |
| Number of rejected observations | 5 |
| Number of DES observations | 0 |
| Number of MPC observations | 271 |
| Number of unpublished observations | 21 |
| RMS of observations | 0.356 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv7 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2021-01 | 0.083 | 0.072 |
| 2021-07 | 0.105 | 0.072 |
| 2022-01 | 0.094 | 0.082 |
| 2022-07 | 0.125 | 0.082 |
| 2023-01 | 0.107 | 0.094 |
| 2023-07 | 0.147 | 0.092 |
| 2024-01 | 0.125 | 0.108 |
| 2024-07 | 0.173 | 0.103 |
| 2025-01 | 0.147 | 0.122 |
Ephemeris comparison
Difference between NIMAv7 and JPL22 in right ascension (weighted by cos δ) and in declination.
Gray area represents the 1-σ uncertainty of NIMA ephemeris. Green dots represent the DES observations.